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From "Karan Mehta (JIRA)" <j...@apache.org>
Subject [jira] [Created] (PHOENIX-4950) SYSTEM.STATS table should include the stopKey of guide posts
Date Wed, 03 Oct 2018 23:02:00 GMT
Karan Mehta created PHOENIX-4950:
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             Summary: SYSTEM.STATS table should include the stopKey of guide posts
                 Key: PHOENIX-4950
                 URL: https://issues.apache.org/jira/browse/PHOENIX-4950
             Project: Phoenix
          Issue Type: Improvement
            Reporter: Karan Mehta


SYSTEM.STATS table should include stop key for each guidepost along with start key. This helps
in determining if there are any gaps/holes in the statistics. UPDATE STATISTICS creates separate
scanners for each region and runs it in parallel. This can potentially fail if particular
region is unavailable or SYSTEM.STATS is unable when the region tries to commit stats. This
Jira will help increase overall resiliency of stats feature. This concept is similar to how
hbck determines holes in the chain.

Kudos to [~sukumaddineni] for the idea!



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